<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<style>
    /* 清除默认样式 */
    *{
        width: 0px;
        padding: 0px;
        border: 0px;
    }
    /* 外部盒子大盒子 */
    .box{
        width: 500px;
        height: 500px;
    }
    /* 白色半圆 */
    .circle-w{
        position: absolute;
        right: 308px;
        top: 200px;
        width: 150px;
        height: 300px;
        border: 1px solid;
        border-radius: 0px 150px 150px 0px;
        background-color: #fff;
    }
    /* 黑色半圆 */
    .circle-b{ 
        position: absolute;
        right: 460px;
        top: 200px;
        width: 150px;
        height: 300px;
        border:1px solid;
        border-radius: 150px 0px 0px 150px;
        background-color: #000;
    }
    /* 内切黑圆 */
    .circle-b-s{
        position: absolute;
        right: 380px;
        top: 200px;
        width: 150px;
        height: 148px;
        border:1px solid;
        border-radius: 150px;
        background-color: black;
    }
    /* 内切白圆 */
    .circle-w-s{
        position: absolute;
        right: 380px;
        top: 350px;
        width: 150px;
        height: 151px;
        border-radius: 150px;
        background-color: white;
    }
    /* 小白点 */
    .circle-w-l{
        position: absolute;
        right: 425px;
        top: 250px;
        width: 50px;
        height: 50px;
        border:1px solid;
        background-color: white;
        border-radius: 150px;
    }
    /* 小黑点 */
    .circle-b-l{
        position: absolute;
        right: 425px;
        top: 400px;
        width: 50px;
        height: 50px;
        border:1px solid;
        background-color: black;
        border-radius: 150px;
    }


</style>
<body>
    <div class="box">
        <div class="circle-w"></div>
        <div class="circle-b"></div>
        <div class="circle-w-s"></div>
        <div class="circle-b-s"></div>
        <div class="circle-w-l"></div>
        <div class="circle-b-l"></div>
   </div> 
</body>
</html>